Radiant gas heater



Dec. l3, 1929. A. F. THOMPSON 1,738,335

RADIANT GAS HEATER Filed Maly 21, 1928- 2 Sheets-Sheet l rnv-im ff Dgec. 3, 1929. A. F. THOMPSON RADIANT GAS HEATER Filed May 21. 19.28

2 Sheets-Sheet 2 Patented Dec. 3, 1929 UNITED STATES AUGUSTUS F. THOMPSON, or HUNTINGTON, WnsT VIRGINIA .RADIANT GAS HEATER i Application led May 21,

The object of this invention is to provide acabinet or console for a radiant gas-heater that will give to the heater the appearance of an 4ornamental piece of furniture and which at the same time will increase the heating capacity of the stove, as more fully hereinaft'er set forth.

Inthe drawing* Fig. 1 is a front elevationV of the apparatus wit-hone of the doors open;

Fig. 2 is a vertical sectional view on the line2-2 of Fig. 4;

Fig. 3 is a perspective View ofone of the doors;

F ig. 4: is a vertical sectional view onthe line 4-11 of Fig. 2;

Fig. 5 is a horizontal sectional view on the line 5-5 of Fig. 4, showing one of the doors open and the other door closed.

Referring to the annexed 'drawing by reference-characters, 10 designates a sheet-metal back-wall of a cabinet; l1, sheet-metal endwal-ls;"'12, a Sheet-metal front-wall; and 13, a removable sheet-metal top-wall orr plate. At'thecorners, the sheet-metal walls are rigidly connected together by radiall bolts 14 whichv extend through the bent, overlapped ends of the walls and through a vertical bar llying against the inner overlap, these bolts being ,rigidly fastened at their outer ends to a leg'l which is hollow and extends the full height of the cabinet, the heads of the bolts 1li-being rigidly connected to the inner faces ofthe-hollow legs. The hollow legs are semicircular in form where they contact with the cabinet, so as to embrace the bent, overlapped edges of the cabinet. When the nuts on the bolts-14; are tightened, the vertical edges of the hollow open legs 16 are drawn tightly against the faces of theadjacent walls, thus forming a substantial corner structure. The vertical strip 15 addsstifi'ness `to the corner joint:V The lower parts'of the legs are circularin cross-section. The upper, semi-circulaends of the legs extend up under the depending flanges 18 formed on the edges of the top-plate 13. The rear and end-walls are provided at their upper edges with inwardlyextending flanges 19 to give rigidity to the cabinet, and, for the same reas0n,these walls 192s. Sei-iai No.` 279,288.

14 at the corners, the whole structure is susceptible of being shipped in knocldowncondition if that be desirable, or the legs alone may be removed from the cabinet for shipping purposes.

Within `the cabinet is mounted a burner,

preferably of the type illustratedin my for-` mer Patents 1,563,050, dated November 24, 1925, and 1,637,014, dated July 26, 1927, gas being supplied to the burner through the medium. of an adjustable gas-jetting device i" 22 supported on a transverse plate 23, to which plate lis also riveted one end of the burner. The burner is mounted within the cabinet, at a distance from the front-wall thereof, and on the top, distributing-tube 24C` of the burner is mounted, in the usual manner, the clay radiants 25, of any suitable design. 'I have shown siX` of these radiants in the present instance, but more or less may be used. The lowerl endsof the radiants rest l on the distrilnrting-tube` 24, as usual, and their top edges are held in alinement by means of a channel-iron 26. By slightly lifting the radiants and swinging their lower-ends outwardly, they may be removed separately.

Arranged `in front of the series ofradiants are four inclined light-roflectingand heatreflecting walls 27, their outer faces being polished. `These walls incline outwardly so as to present bevelled or inclined surfaces at the front to thus tend to reflect the light and the heat outwardly through the opening in, the front-wall.` The lower reflecting-wall 27- extends from themiXing-tube to the frontwall 12, where it is riveted to the inwardly-` extending flange 28, the inneredge of this reflecting-wall 27 resting on little lugs 29 formed on the front-face of the mixing-tube. The top-wall 27 extends from the aforesaid channel-iron 2.6; t0 the flans@ 28, to which it is riveted. The end-walls 27 are rigidly attached to vertical sheet-metal posts 30 built into the cabinet-frame and are thence extended inwardly past the burner and riveted to a vertical Wall 31 built into the frame of the cabinet and lying just back of the radiants, p e

The lopposite v ends ofthe wall 31 are connectedy to the back-wall by vertical walls 10 32 which, together with a top-plate 33 and 4a bottom-plate 34, for-m a hot-airchamber immediately back of the radiants. The front or Vheat wall 31 terminates short of the bottom-plate 34 so as to Vleave an opening for hot air to circulate to a certain extent. Up through the hot-air chamber 35 (formed by Wall's`31, 32, 33and 34) extends la series of open-ended tubes 36. The lower ends of tubes 36are VV open so thatlheated `air may rise .20 through the tubes and pass up into the top hot-air chamber 37 formed in the upper part of the'cabinet. The heated air from chamber 37 escapes out into the room through a multiplicity of openings 38 formed in the front- Wall 12 above the door-opening therein. The heated air is therefore caused to pass up through heating-tubes 36 into the distributing-chamber 37 and thence out through the holes 38. Of course, additional heat will be radiated and reflected out through the front opening in they cabinet, the reflection of the heat and light being `assisted by means of the polished inclined walls 27 surrounding the radiants. I

Over the top of the radiants and the channel-iron 2,3 is a closed chamber 39 which is connected to a flue-40 whichvextends horizontally backward through the back-wall 10. This chamber 39 extends the length of the rowv ,of radiants and is open along its lower edge to receive the products of combustion arising from the radiants, and these products are passed out through flue 40 to a suitable connection which will deliver them into a chimney if it be desired to connect the apparatus with a chimney for the discharge of .the products of combustion. The hot-plate 31 serves to' heatthe air of chamber 35 and the lu'elehambers 39-40 serve to heat the air passing through the upper hot-air chamber of the cabinet. Y. It will be observed that the hot-productschamber 39 is closed at its front and rear walls andy at its ends and that it extends at least the length of the row of radiantsl and, further, that it is located approximately midWciy between the front and` rear walls of the cabinet, its rear wall being connectedto the rear wall ofthe cabinet by through the tubes 36 and up through the flues a smoke-flue 40. `With this arrangement, it` will be seen that the maximum yof efficiency yis obtained, in heating the air going un the escape-openings 38 in the front wall of the cabinet.

I provide the cabinet with two sliding doors 41, each constructed of sheet metal. These doors are each adapted to slide in a sheet-metal channel 42 supported in the cabinet on horizontal flanges 43 formed on the upper edges of the plates 23. When these doors are pulled outwardly as far as they can come, they are adapted to swing inwardly upon the cabinet and meet inthe middle of the door-opening and thus close the opening, thereby obscuring the radiants as well as the reecting-surfaces 27 from view and giving to the apparatus the appearance of an ornamental piece of furniture of the tfpe of a console. The doors when closed ht within the marginal flange 28 and rest therein, and when slid inwardly as far as they will go-y in the channels 42 their outer edges are flush: with the front-wall 12. To give stillness to the doors, their edges are flanged, and, in order to prevent them froln being pulled out of the cabinet when they are open, I provide cach door with a verticalflange 43 near its rear edge, wliiclnwhen the door isv drawn outwardly to the limit, will strike against an abutment-plate 44 fastened to the adjacent post 30, thus preventing the door being pulled entirely out of the channel 42, but permitting it to swing inwardly toward the face of the cabinet. rl`he ilange 43 resting against the projecting-edge of the plate 44v forms a sort of hinge, and, in order that this hinge action may take place, one wall of the channel at 45 is bent outwardly. The flan ges at the outer edges of the doors are provided with inwardly-turned stop-lips 4G which. when the doors are closed, abut against the outer faces of the stop-langes of plate 44 and arrest the doors in position with their front edges flush with the face of the front-wall.

What I claim as new is:

1. Inv a radiant gas heater, a cabinet, a burner anda row of radiants supported in the cabinet, a flue arrangement for conducting` olf the products of combustion from the radiants embodying a closed chamber spaced away from the front wall as well as the back wall of the cabinet and mounted in the upper part thereof and having its closed ends terminate short of the side walls of the cabinet, a smoke-flue connecting the rear wal-l of this chamber to the yrear wall of the cabinet, a. vertical plateat the back of the radiants at a distance fromv the back wall of the. cabinet, the front wall of the cabinetzat the top there# ofl being provided with hot-air escape-open-v ings whereby air rising up in the space liel tween the aforesaid vertical plate: and thez. back wall of the cabinet will pass over and" around the said chamber and flue before escaping through said front openings; y

2. In a radiant gas-heater, afcabinetya'v burner and. a. series of i radiants .supported in;

the cabinet, a flue arrangement for conducting off the products of Combustion from the radiante embodying a closed chamber spaced away from the front Wall as Well as the back Wall of the cabinet and mounted in the upper part thereof, a smoke-Hue connecting the rear Wall ofl this chamber to the rear Wall of the cabinet, a vertical plate at the back of the radiante at a distance from the back Wall of the oabinet, the front Wall of the cabinet at the top thereof boing provided With hot-air eseapeiopenings whereby air risingup in the space between the aforesaid Vertical plate and the back Wall of the cabinet will pass over and around the said chamber and flue before escaping through said front openings, said space between the radiant-plate and the back Wall being boxed in by Vertical as Well as horizontal Walls and having air-lues vertically extending therethrough.

In testimony whereof I hereunto affix my signature.

AUGUSTUS F. THOMPSON. 

